Writing about chemical reactions and equations in a chemistry essay is not an easy task, if you do not have the required knowledge to do so. Chemistry is a vast field which covers inorganic and organic experiments and processes that are complex in nature. The essence of writing any essay is to have sound basic knowledge about the topic. The same principle applies to chemistry. The methods might differ a bit on account of presenting chemical processes and equations, but the logic applied and essay writing steps will remain the same.